SERVER-30875 add requireOwnedObjects() to scoper3.4.8-rc1r3.4.8

Add a flag to JS scopes that requires that bson objects bound to the
scope be owned.  This should allow for more easy auditing of scopes that
don't explicitly manage lifetime with advanceGeneration.

(cherry picked from commit 79b47945a6aae707d44e05669d991d86b157a14b)

1 files changed, 5 insertions, 0 deletions

diff --git a/src/mongo/scripting/mozjs/implscope.h b/src/mongo/scripting/mozjs/implscope.h
index df37553e181..ea9b35d2cf4 100644
--- a/src/mongo/scripting/mozjs/implscope.h
+++ b/src/mongo/scripting/mozjs/implscope.h
@@ -309,6 +309,10 @@ public:
 
     void advanceGeneration() override;
 
+    void requireOwnedObjects() override;
+
+    bool requiresOwnedObjects() const;
+
     JS::HandleId getInternedStringId(InternedString name) {
         return _internedStrings.getInternedString(name);
     }
@@ -402,6 +406,7 @@ private:
     Status _status;
     std::string _parentStack;
     std::size_t _generation;
+    bool _requireOwnedObjects;
     bool _hasOutOfMemoryException;
 
     WrapType<BinDataInfo> _binDataProto;